Enhanced PMUT-Based Imaging Using Continuous Wavelet Transform

Enhanced PMUT-Based Imaging Using Continuous Wavelet Transform

2025 IEEE SENSORS

10.1109/SENSORS59705.2025.11330911

https://doi.org/10.1109/sensors59705.2025.11330911

Mantalena Sarafianou, Gaia Giubilei, Duan J. Goh, Yul Koh, Silvia Adorno, Alberto Leotti, Chang Kwan Teo, Hwee Hwee Ong

19 January 2026

Sarafianou, M., Giubilei, G., Goh, D. J., Koh, Y., Adorno, S., Leotti, A., Teo, C. K., & Ong, H. H. (2025). Enhanced PMUT-Based Imaging Using Continuous Wavelet Transform. In (Editor), 2025 IEEE SENSORS. https://doi.org/10.1109/sensors59705.2025.11330911

This work introduces a CWT-based signal preprocessing method for ultrasonic imaging with PMUTs, aimed at improving signal quality before reconstruction. Validated experimentally using an 18-channel PZT PMUT array and standard algorithms (DAS, DMAS), the approach significantly boosts SNR without adding computational overhead.

Publisher Copyright

This research / project is supported by the A*STAR - Industry Alignment Fund – Industry Collaboration Projects (IAF-ICP) "Piezo Specialty Lab-in-Fab 2.0"
Grant Reference no. : I2301E0027

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Institute of Microelectronics